On Tue, Jan 21, 2020 at 02:31:53PM -0800, Sean Christopherson wrote: [...] > @@ -1333,6 +1369,7 @@ int kvm_clear_dirty_log_protect(struct kvm *kvm, > unsigned long i, n; > unsigned long *dirty_bitmap; > unsigned long *dirty_bitmap_buffer; > + bool flush; > > as_id = log->slot >> 16; > id = (u16)log->slot; > @@ -1356,7 +1393,9 @@ int kvm_clear_dirty_log_protect(struct kvm *kvm, > (log->num_pages < memslot->npages - log->first_page && (log->num_pages & 63))) > return -EINVAL; > > - *flush = false; > + kvm_arch_sync_dirty_log(kvm, memslot); Do we need this even for clear dirty log? > + > + flush = false; > dirty_bitmap_buffer = kvm_second_dirty_bitmap(memslot); > if (copy_from_user(dirty_bitmap_buffer, log->dirty_bitmap, n)) > return -EFAULT; -- Peter Xu
